Inflatable device



FIG. 1 is a front perspective view of an inflatable device;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines depict portions of the inflatable device which form no part of the claimed design. 

CLAIM The ornamental design for an inflatable device, as shown and described. 